Originally Posted by till
Ok, so there must be something wrong with the horde code or rewrites rules, especially as this happens only on this one URL.
Just to clarify - This error happens on ALL the websites and the IP, there is no difference. So that would seem to suggest that either mod_rewrite is not configured properly or I have issues with some code somewhere??
The Horde Dev team no longer reply to this problem. Seems its too hard for them, or I'm too dumb.